Commercial activities discharging trade effluent to the public sewer require a licence under Section 16 of the Local Government Water Pollution Acts 1977 & 1990.
In addition, with few exemptions, effluent discharges to waters require a licence under Section 4 of the Water Pollution Acts.
Discharge Licence Application Form
Large industrial or agricultural activities require an Integrated Pollution Control Licence from the Environmental Protection Agency. Full information on IPPC licences can be found at the EPA website www.epa.ie